diff --git a/src/services/export/zip.js b/src/services/export/zip.js
index 3e8e3ad4a..1cdface65 100644
--- a/src/services/export/zip.js
+++ b/src/services/export/zip.js
@@ -52,13 +52,13 @@ function exportToZip(taskContext, branch, format, res) {
     function getDataFileName(note, baseFileName, existingFileNames) {
         let fileName = baseFileName;
 
+        let existingExtension = path.extname(fileName).toLowerCase();
+        let newExtension;
+        
         if (fileName.length > 30) {
             fileName = fileName.substr(0, 30);
         }
 
-        let existingExtension = path.extname(fileName).toLowerCase();
-        let newExtension;
-
         // following two are handled specifically since we always want to have these extensions no matter the automatic detection
         // and/or existing detected extensions in the note name
         if (note.type === 'text' && format === 'markdown') {